tscircuit@0.0.3075
**Design circuit boards with TypeScript and React.**
AI Security Review
scanned 8h ago · by lpm-firewall-aiThe browser bundle includes default PostHog telemetry for runframe activity and UI errors, with an opt-out but no disclosure in the package README. This is an undisclosed runtime collection risk, so the package should receive a warning rather than a publish block.
Static reason
No blocking static signals were detected.
Trigger
When the browser runtime loads or its UI encounters an error; telemetry can be disabled with TSCIRCUIT_TELEMETRY_DISABLED.
Impact
Runtime telemetry is not disclosed in the package README, and error details may contain identifying or project-related information.
Mechanism
PostHog is initialized by default and receives captured activity and error details, including error messages and stacks.
AI rationale
The browser bundle includes default PostHog telemetry for runframe activity and UI errors, with an opt-out but no disclosure in the package README. This is an undisclosed runtime collection risk, so the package should receive a warning rather than a publish block.
Evidence
dist/browser.min.js
Network endpoints1
us.i.posthog.com
Decision evidence
public snapshotAI called this Suspicious at 83.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package exposes a bundled browser entry point that contains the runtime telemetry behavior.
- The browser bundle initializes PostHog unless telemetry is disabled, and captures runframe activity and UI error details including messages and stacks.
- The package has no install lifecycle scripts; its CLI loads the Tscircuit CLI when a user invokes it.
Evidence against
- The library entry point re-exports Tscircuit core and eval functionality, consistent with the package’s circuit design and evaluation purpose.
- The telemetry code has a TSCIRCUIT_TELEMETRY_DISABLED opt-out and uses anonymous identifiers in some contexts.
Behavioral surface
EnvironmentVarsFilesystem
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
3 flaggeddist/webworker.min.jsView file
•path = dist/webworker.min.js
kind = oversized_source_file
sizeBytes = 21489991
magicHex = [redacted]
Medium
Oversized Source File
Package contains source files above the normal full-analysis size ceiling.
dist/webworker.min.jsView on unpkgdist/index.jsView file
1// index.ts
export * from "@tscircuit/core";
import { jscad } from "@tscircuit/core";
export * from "@tscircuit/eval";
i
Medium
Ai Review Evidence
The package exposes a bundled browser entry point that contains the runtime telemetry behavior.
dist/index.jsView on unpkg · L1cli.mjsView file
14// Expose the runframe + eval bundle shipped by this tscircuit version (the one
// that provides the `tsci` binary) so `tsci dev` can use it when the project has
// no local tscircuit install
Findings
5 Medium4 Low
MediumEnvironment Vars
MediumOversized Source Filedist/webworker.min.js
MediumStructural Risk Force Deep Review
MediumAi Review Evidencedist/index.js
MediumSuspicious Lifecycle Evidencecli.mjs
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to tscircuit@0.0.3075.
See all versions of tscircuit for other recorded verdicts.
- Review the evidence and your use of tscircuit@0.0.3075 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.